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Mathematics (AS & A Level) · Oct / Nov 2025 · Paper 61 · Question 7

9709

As printed in the paper

The question as text

The time, in minutes, taken by students to complete a test is modelled by the random variable X with probability density function . otherwise 0 ( ) ( )( ) , x x x x 3 5 3 5 f 4 3 G G = - - - *

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme
  • 7(a)[4]

  • 7(b)[1]

  • 7(c)[2]

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